Electric heating – Metal heating – By arc
Patent
1995-09-19
1998-01-27
Walberg, Teresa J.
Electric heating
Metal heating
By arc
21912176, 21912177, 21912183, 21912185, 360109, B23K 2600
Patent
active
057124639
ABSTRACT:
An apparatus and method for automatically adjusting the gram load, static attitude and the flying height of the slider in a head suspension assembly comprising one or more lasers, a fiber optic switch, a measurement apparatus and a computer control device. The fiber optic switch includes a plurality of fiber optic lines which direct the output of the laser to well-defined regions on the suspensions in a disk drive. Irradiation of the suspension by the laser causes a load change which alters the flying height, and/or a static attitude change in the slider. In the method of the present invention, the initial gram load, flying height or static attitude of the slider is measured by the measurement apparatus and the control means calculates how much energy is required to cause the change needed to achieve the desired condition. Other information, such as the type of laser to be used is also specified by the control device. The laser then delivers output to the suspension through the fiber optic line and the static attitude, flying height, or gram load is remeasured to determine if additional adjustment is required.
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English abstract of Duch patent document NL 9201768-A.
Alexopoulos Pantelis S.
Arya Satya P.
Krajnovich Douglas J.
Lee Chih-Kung
O'Sullivan Timothy
International Business Machines - Corporation
Mills Gregory L.
Pagel Donald J.
Walberg Teresa J.
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